CRUDE MIXTURE FOR MAKING ARTIFICIAL STONE

摘要

FIELD: chemistry. ^ SUBSTANCE: crude mixture for making artificial stone contains the following, wt %: borax 25-35; cobalt carbonate 0.01-0.015; litharge 10-15; crystal - the rest. The mixture of components is melted and poured into metal moulds. The obtained moulds are then annealed, polished and cut. ^ EFFECT: low melting temperature of the crude mixture for making artificial stone which imitates colourless topaz. ^ 1 tbl